Payam Heydari, Sakineh Varmazyar, Chia Hakimi, Sana Shokri,
Volume 7, Issue 2 (6-2017)
Abstract
Introduction: Given the increase of road transportation of dangerous materials, if an accident occurs, the first groups that present at the scene are rescue groups (emergency، red crescent and firefighters). The aim of this study was to investigate the validity and reliability of the questionnaire assessing level of knowledge in the rescue personnel regarding warning signs mounted on the road heavy machinery.
Material and Method: Firstly, a multiple-choice questionnaire was designed using the literature and material safety data sheets (MSDS). Validity of the questionnaire was examined using the viewpoints of 10 experts. The reliability of the questionnaire was assessed using test-retest in 20 subjects of the rescue groups in two-week intervals. The cut point of the questionnaire was determined by the Receiver Operating Characteristic (ROC).
Result: The mean of age and work experience of the participants was 32.42 ± 2.57 and 7.75 ± 2.70. The results of correlation between the questions of the test showed that Cronbach’s alpha is 0.708. Also, the stability and reliability of test scores over time showed that the correlation between the questions in the first and second series was significance at acceptable level (r=0.698 with P-value=0.012(. The best value of cut point in the questionnaire of knowledge in the rescue personnel as obtained 18.5, with the sensitivity of 60% and specificity of 50%.
Conclusion: The validity and reliability of the knowledge assessment questionnaire in the rescue personnel were confirmed regarding the warning signs mounted on the road heavy machines; therefore, it can be used in the future studies.
Mojtaba Jafarvand, Payam Heydari, Sakineh Varmazyar,
Volume 9, Issue 1 (4-2019)
Abstract
Introduction: Global Harmonized System (GHS), is a system for labeling chemicals. The aim of present study was to investigate the effect of rapid training intervention on student’s awareness toward Global Harmonized System.
Material and Methods: This research was a descriptive-analytical and cross-sectional study conducted among 317 students of Public Health and Allied Medical Sciences faculties of Qazvin University of Medical Sciences in 2016 year. Sampling was done in a random base among the study population. A general demographic and a global system labeling questionnaires were used for data collection. Training intervention for familiarization with the chemical safety labels, types of chemicals hazardous was implemented using a rapid training method and PowerPoint tool. Data analysis was performed by T-Tests, ANOVA and T-Paired using the SPSS version 18.
Results: Allied medical sciences students with an average of 48.31% before training and occupational health students with an average of 94.44% correct answers after the training have the highest awareness on global harmonized system (GHS). The findings also showed that training has a significant effect on the awareness on the international labeling system.
Conclusion: The present study showed that initial awareness of the students is low concerning the global harmonized system. So, the prevention of serious accidents in the laboratory environment, the implementation of a short training course would play a significant role in raising students’ awareness about chemical hazards and will control unsafe behaviors during laboratory works.
